It's pretty fast for what it is. I used this on an old internal NVMe drive to turn it into an external drive. For this it works very well and has reached the speed indicated by the manufacturer. This allows the TRIM command to be used and seems to work. What I don't like about this device is that you can't use it to perform a secure erase on the drive. To do this, you need to plug it into a computer with an M.2 PCIe slot and run Secure Erase from there.
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